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Exclusive two $ρ^0$-mesons production in $γγ^*$ collision

I. V. Anikin·B. Pire·O. V. Teryaev
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Abstract

We give a theoretical description of the L3 Collaboration data on the cross-section of the exclusive two $ρ$-mesons production in $γγ^*$ collision with large photon virtuality. These data prove the scaling behaviour of the leading twist generalized distribution amplitude of vector mesons. They thus prove the relevance of a partonic description of the exclusive process $γγ^*\toρ^0ρ^0$ at $Q^2\geq 1.2 {\rm GeV^2}$ and $W\leq 3.0 {\rm GeV}.$

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I. V. Anikin, B. Pire, O. V. Teryaev. 2003-05-17. Exclusive two $ρ^0$-mesons production in $γγ^*$ collision. https://doi.org/10.1016/s0920-5632(03)02344-2

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